arxivmath.APstat.ML2026-07-14
Wasserstein gradient flows for Coulomb discrepancies
Antonin Chodron de Courcel, Matthew Rosenzweig
We study the long-time behavior of the Wasserstein gradient flow of the squared Maximum Mean Discrepancy (MMD) between a probability measure $ρ$ and a target measure $μ$, where the underlying kernel is given by a Coulomb potential. First, we establish the existence of global weak…